AC works fine for about 15 minutes, then the fuse blows

Tiny
HONDAKID
  • MEMBER
  • 1990 HONDA PRELUDE
  • 4 CYL
  • FWD
  • MANUAL
  • 104,000 MILES
I was hoping you would help me with the problem I am having with the air conditioning. The cooling works fine for about 15 minutes, then the fuse blows and the fan just blows uncooled air. Replacing the fuse results in the fuse blowing again. The mechanic checked the ac system for leaks, but could not find any. Do you think there is an electrical problem?
Wednesday, July 16th, 2008 AT 4:55 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This could be due to a faulty wiring for the compressor, it can also be for a bad pressure switch for the compressor.
The pressure switch is located toward the front of the engine bay, close to the driver side fender (see diagram).
Exposed wiring can also trigger the fuse to burn out. So, checking the harness is necessary as well.

https://www.2carpros.com/articles/how-to-check-wiring

I have attached the HVAC wiring schematics below.

Please let me know if you have any questions.
Thank you.
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Tuesday, November 9th, 2021 AT 7:15 AM

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